High-precision positioning mechanism of three-dimensional automobile foot mat injection molding mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a high-precision positioning mechanism of a three-dimensional automobile foot mat injection molding mold. The foot pad forming die comprises two foot pad forming lower dies and two foot pad forming upper dies, forming protrusions and buckle forming lower portions are arranged on the foot pad forming lower dies, forming concave cavities and buckle forming upper portions are arranged in the foot pad forming upper dies, the positions of the forming protrusions correspond to the positions of the forming concave cavities, and the shapes of the forming protrusions and the shapes of the forming concave cavities are matched. And the buckle forming lower part and the buckle forming upper part correspond to each other in position and are matched with each other in shape. According to the utility model, the multi-directional positioning assembly, including the staggered arrangement of the mold closing shaft piece and the positioning disc shaft piece, is used for positioning the foot pad forming upper mold and the foot pad forming lower mold from multiple directions, so that the mold closing precision is greatly improved, and further, the three-dimensional forming degree and precision of the automobile foot pad in the injection molding process are ensured; and the produced automobile foot mat can be better attached to the internal space of an automobile.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould technical field relates to a kind of high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould. BACKGROUND

[0002] In the injection molding process of automobile foot mat, the positioning accuracy of mould plays a crucial role in the forming quality of foot mat. The traditional automobile foot mat injection mould positioning mechanism has the problems of inaccurate positioning and low precision, which leads to the production of automobile foot mat in three-dimensional forming degree is not ideal, cannot closely fit the complex space inside the car, affects the use effect and aesthetic degree. In addition, the imperfect positioning mechanism is also prone to cause overflow, forming size deviation and other defects in the injection molding process, reduce product pass rate, increase production cost. Therefore, it is urgent to design a kind of three-dimensional automobile foot mat injection molding mould high-precision positioning mechanism which can overcome the above defects.

[0003] In order to overcome the deficiencies of prior art, people have explored constantly, and put forward various kinds of solutions, such as Chinese patent discloses a kind of automobile foot mat injection mould [application number: 201911400276.8], including lower mould, the inner side of lower mould is provided with positioning hole, the position of the geometric center of the inner side of lower mould is provided with recess, the inner side of recess is connected with lower mould plate, the lower end of lower mould plate is connected with spring, the inner side of lower mould plate is provided with ejector rod, the inside of lower mould plate is provided with water channel, one end of water channel is connected with flow limiting port, the outer surface of flow limiting port is connected with flow guide pipe, the inside of lower mould is provided with hole slot, the inner side of hole slot is connected with latch, the lower end of lower mould is provided with connecting groove. But the positioning mechanism still has the problems of inaccurate positioning and low precision in the use process, the produced automobile foot mat in three-dimensional forming degree is not ideal, cannot closely fit the complex space inside the car, affects the use effect, and reduces product pass rate, increases production cost. Defects. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above problem, provide a kind of high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, including two foot mat forming lower mould and two foot mat forming upper mould, the foot mat forming lower mould is equipped with forming protrusion and buckle forming lower part, the foot mat forming upper mould is equipped with forming recess and buckle forming upper part inside, the position of the forming protrusion and forming recess corresponds and shape is matched, the position of the buckle forming lower part and buckle forming upper part corresponds and shape is matched, the foot mat forming upper mould is equipped with injection molding portion being communicated with forming recess inside, the foot mat forming lower mould and foot mat forming upper mould are equipped with multidirectional positioning assembly, the forming protrusion and forming recess are respectively staggered with multidirectional positioning assembly.

[0007] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, the multidirectional positioning assembly includes a mold closing shaft arranged on the foot mat forming upper mould, the mold closing shaft is in clamping connection with the foot mat forming lower mould, the foot mat forming lower mould is provided with a positioning disc shaft, and the positioning disc shaft is in clamping connection with the foot mat forming upper mould.

[0008] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, the mold closing shaft and the positioning disc shaft are staggered.

[0009] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, the mold closing shaft includes four mold closing shafts arranged on the foot mat forming upper mould, four mold closing through holes are formed in the foot mat forming lower mould, a sleeve shaft is sleeved in the mold closing through hole, and the mold closing shaft is in clamping connection with the sleeve shaft.

[0010] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, the sleeve shaft includes a sleeve ring arranged in the mold closing through hole, the sleeve ring has an arc transition ring surface, and the mold closing shaft is in clamping connection with the sleeve ring.

[0011] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, the positioning disc shaft includes four positioning discs arranged on the foot mat forming lower mould, four positioning grooves are formed in the foot mat forming upper mould, and the positioning disc is in clamping connection with the positioning groove.

[0012] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, a positioning plug rod is arranged on the top of the positioning disc, a plug rod hole is formed in the positioning groove and communicated with the positioning groove, and the positioning plug rod is in clamping connection with the plug rod hole.

[0013] In the above-mentioned high-precision positioning mechanism of three-dimensional automobile foot mat injection molding mould, the injection molding portion includes an injection molding main hole arranged in the foot mat forming upper mould, and the injection molding main hole is communicated with the forming recess.

[0014] In the high-precision positioning mechanism of the three-dimensional automobile foot pad injection molding mold, the buckle forming lower part comprises a buckle hole forming shaft arranged in the foot pad forming upper mold.

[0015] In the high-precision positioning mechanism of the three-dimensional automobile foot pad injection molding mold, the buckle forming upper part comprises a buckle forming groove arranged in the foot pad forming lower mold.

[0016] Compared with the prior art, the automobile foot pad injection molding mold has the advantages that:

[0017] 1、The multi-direction positioning assembly is staggered and arranged with the mold closing shaft and the positioning disc shaft, and the foot pad forming upper mold and the foot pad forming lower mold are positioned from multiple directions, so that the precision of mold closing is greatly improved, and the three-dimensional forming degree and precision of the automobile foot pad during the injection molding process are ensured, so that the produced automobile foot pad can better fit the interior space of the automobile.

[0018] 2、The arc-shaped transition ring surface in the sleeve ring can better guide the insertion of the mold closing shaft, reduce the resistance and wear during insertion, and better hold the mold closing shaft after mold closing, thereby enhancing the positioning effect.

[0019] Other advantages, objects and characteristics of the utility model will be embodied in part through the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model.

[0021] Figure 2 is a structural schematic view of the foot pad forming upper mold.

[0022] Figure 3 is a structural schematic view of the foot pad forming lower mold.

[0023] Figure 4 is a structural schematic view of the sleeve ring.

[0024] In the figure: foot pad forming lower mold 1, foot pad forming upper mold 2, forming protrusion 3, buckle forming lower part 4, forming recess 5, buckle forming upper part 6, injection part 7, multi-direction positioning assembly 8, mold closing shaft 9, positioning disc shaft 10, mold closing shaft 11, mold closing through hole 12, sleeve shaft 13, sleeve ring 14, positioning disc 15, positioning groove 16, positioning inserting rod 17, inserting rod hole 18, injection main hole 19, buckle hole forming shaft 20, buckle forming groove 21. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings.

[0026] AsFigures 1-4 As shown in the figure, a high-precision positioning mechanism of a three-dimensional automobile foot mat injection molding mold, comprising two foot mat forming lower molds 1 and two foot mat forming upper molds 2, the foot mat forming lower mold 1 is provided with a forming protrusion 3 and a buckle forming lower part 4, the foot mat forming upper mold 2 is provided with a forming cavity 5 and a buckle forming upper part 6, the forming protrusion 3 and the forming cavity 5 correspond in position and match in shape, the buckle forming lower part 4 and the buckle forming upper part 6 correspond in position and match in shape, the foot mat forming upper mold 2 is provided with an injection part 7 connected with the forming cavity 5, the foot mat forming lower mold 1 and the foot mat forming upper mold 2 are provided with a multi-directional positioning assembly 8, and the forming protrusion 3 and the forming cavity 5 are staggered with the multi-directional positioning assembly 8 respectively.

[0027] In this embodiment, when injection molding, the forming protrusion 3 is inserted into the forming cavity 5, and the two cooperate to form a three-dimensional forming space of the automobile foot mat, which ensures the contour accuracy of the foot mat, the buckle forming lower part 4 and the buckle forming upper part 6 correspond in position and match in shape, which is used to form the buckle structure on the automobile foot mat during injection molding, ensuring the accuracy of the buckle forming, the foot mat forming upper mold 2 is provided with an injection part 7 connected with the forming cavity 5, the injection part 7 is used to inject molten plastic into the space formed by the forming cavity 5 and the forming protrusion 3, realizing the injection molding of the automobile foot mat, the foot mat forming lower mold 1 and the foot mat forming upper mold 2 are provided with a multi-directional positioning assembly 8, and the forming protrusion 3 and the forming cavity 5 are staggered with the multi-directional positioning assembly 8 respectively, the multi-directional positioning assembly 8 positions the upper and lower molds from multiple directions, avoiding displacement of the mold during injection molding, ensuring the forming accuracy, through the staggered arrangement of the multi-directional positioning assembly 8, including the mold closing shaft 9 and the positioning disc shaft 10, the foot mat forming upper mold 2 and the foot mat forming lower mold 1 are positioned from multiple directions, greatly improving the accuracy of mold closing, and further ensuring the three-dimensional forming degree and accuracy of the automobile foot mat during injection molding, so that the produced automobile foot mat can better fit the interior space of the automobile.

[0028] In combination Figures 1-4 As shown, the multi-directional positioning assembly 8 includes a mold closing shaft 9 arranged on the foot mat forming upper mold 2, the mold closing shaft 9 is clamped and matched with the foot mat forming lower mold 1, the foot mat forming lower mold 1 is provided with a positioning disc shaft 10, and the positioning disc shaft 10 is clamped and matched with the foot mat forming upper mold 2.

[0029] Specifically, the mold closing shaft 9 is inserted into the corresponding structure of the foot mat forming lower mold 1 during mold closing, the positioning disc shaft 10 is inserted into the corresponding structure of the foot mat forming upper mold 2 during mold closing, and the two position the mold from different positions and directions, improving the reliability of positioning.

[0030] The mold closing shaft 9 and the positioning disc shaft 10 are staggered.

[0031] In this embodiment, the clamping shaft 9 and the positioning disc shaft 10 are staggered, which can effectively position the mold in all directions, avoid dead angles, and further improve the positioning accuracy.

[0032] In combination Figure 2 , Figure 3 As shown in the figure, the clamping shaft 9 includes four clamping shafts 11 arranged on the foot pad forming upper mold 2, four clamping through holes 12 are arranged in the foot pad forming lower mold 1, a sleeve shaft 13 is arranged in the clamping through hole 12, and the clamping shaft 11 is connected with the sleeve shaft 13.

[0033] In this embodiment, during the clamping process, the clamping shaft 11 is inserted into the sleeve shaft 13, the sleeve shaft 13 plays a guiding and positioning role, the clamping process is smoother, and the accurate matching between the clamping shaft 11 and the clamping through hole 12 is ensured, thereby improving the clamping accuracy.

[0034] The sleeve shaft 13 includes a sleeve ring 14 arranged in the clamping through hole 12, the sleeve ring 14 has an arc transition ring surface, and the clamping shaft 11 is connected with the sleeve ring 14.

[0035] In this embodiment, the arc transition ring surface in the sleeve ring 14 can better guide the insertion of the clamping shaft 11, reduce the resistance and wear during insertion, and better hold the clamping shaft 11 after clamping, thereby enhancing the positioning effect.

[0036] In combination Figures 2-3 As shown in the figure, the positioning disc shaft 10 includes four positioning discs 15 arranged on the foot pad forming lower mold 1, four positioning grooves 16 are arranged in the foot pad forming upper mold 2, and the positioning disc 15 is connected with the positioning groove 16.

[0037] In this embodiment, the positioning disc 15 and the positioning groove 16 are matched to position the mold from the horizontal direction, preventing displacement of the mold in the horizontal direction.

[0038] The positioning disc 15 is provided with a positioning insertion rod 17, the positioning groove 16 is provided with an insertion rod hole 18 in communication with the positioning groove 16, and the positioning insertion rod 17 is connected with the insertion rod hole 18.

[0039] In this embodiment, the positioning insertion rod 17 is inserted into the insertion rod hole 18 to further improve the positioning accuracy and stability, and the positioning disc 15 and the positioning groove 16 are matched more closely.

[0040] In combination Figures 1-3 As shown in the figure, the injection part 7 includes an injection main hole 19 arranged in the foot pad forming upper mold 2, and the injection main hole 19 is in communication with the forming cavity 5.

[0041] In the embodiment, when injection molding, the molten plastic is injected into the forming cavity 5 through the injection molding main hole 19 to realize injection molding of the automobile foot pad, and the injection molding main hole 19 is arranged to ensure the smooth injection molding process.

[0042] In combination Figures 1-4 As shown in the figure, the buckle forming lower part 4 comprises a buckle hole forming shaft 20 arranged in the foot pad forming upper die 2.

[0043] In the embodiment, when injection molding, the buckle hole forming shaft 20 cooperates with the buckle forming upper part 6 to form the buckle hole structure on the automobile foot pad.

[0044] In combination Figures 1-3 As shown in the figure, the buckle forming upper part 6 comprises a buckle forming groove 21 arranged in the foot pad forming lower die 1.

[0045] In the embodiment, the buckle hole forming shaft 20 cooperates with the buckle forming groove 21 to accurately form the buckle structure of the automobile foot pad, thereby ensuring the quality and precision of the buckle.

[0046] The working principle of the utility model is:

[0047] The foot pad forming lower die 1 and the foot pad forming upper die 2 are prepared, the clamping shaft 11 of the clamping shaft part 9 is aligned with the sleeve shaft ring 14 in the clamping through hole 12 of the foot pad forming lower die 1, and due to the arc transition ring surface in the sleeve shaft ring 14, the clamping shaft 11 can be smoothly inserted into the sleeve shaft ring 14 to realize preliminary positioning,

[0048] The positioning plug rod 17 on the positioning disc 15 of the positioning disc shaft part 10 is aligned with the plug rod hole 18 in the positioning groove 16 of the foot pad forming upper die 2, the positioning disc 15 is inserted into the positioning groove 16, and the positioning plug rod 17 is inserted into the plug rod hole 18 to complete further positioning in the horizontal and vertical directions. Through the multi-directional and multi-structural positioning mode, the foot pad forming upper die 2 and the foot pad forming lower die 1 are accurately clamped,

[0049] After clamping is completed, the molten plastic is injected into the forming cavity 5 through the injection molding main hole 19 of the injection molding part 7, and due to the accurate cooperation between the forming protrusion 3 and the forming cavity 5, a three-dimensional forming space of the automobile foot pad is formed to ensure the shape precision of the foot pad,

[0050] In the injection molding process, the buckle hole forming shaft 20 of the buckle forming lower part 4 cooperates with the buckle forming groove 21 of the buckle forming upper part 6 to accurately form the buckle structure of the automobile foot pad, thereby ensuring the quality of the buckle.

[0051] The specific embodiments described in the present document are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model.

[0052] Although the terms such as foot pad forming lower die 1, foot pad forming upper die 2, forming protrusion 3, buckle forming lower part 4, forming cavity 5, buckle forming upper part 6, injection part 7, multi-direction positioning assembly 8, die clamping shaft 9, positioning disc shaft 10, die clamping shaft 11, die clamping through hole 12, sleeve shaft 13, sleeve collar 14, positioning disc 15, positioning groove 16, positioning plug 17, plug hole 18, injection main hole 19, buckle hole forming shaft 20, buckle forming groove 21, etc. are used more in this document, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the utility model, and it is against the spirit of the utility model to interpret them as any kind of additional limitation.

Claims

1. A high-precision positioning mechanism for a three-dimensional automobile foot mat injection molding mold, comprising two foot mat forming lower molds (1) and two foot mat forming upper molds (2), characterized in that, The lower die (1) of the insole forming die is provided with a forming protrusion (3) and a buckle forming lower part (4), the upper die (2) of the insole forming die is provided with a forming cavity (5) and a buckle forming upper part (6), the forming protrusion (3) corresponds to the forming cavity (5) in position and is matched in shape, the buckle forming lower part (4) corresponds to the buckle forming upper part (6) in position and is matched in shape, the upper die (2) of the insole forming die is provided with an injection part (7) communicated with the forming cavity (5), the lower die (1) of the insole forming die and the upper die (2) of the insole forming die are provided with a multi-directional positioning assembly (8), and the forming protrusion (3) and the forming cavity (5) are staggered with the multi-directional positioning assembly (8) respectively.

2. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 1, characterized in that, The multi-directional positioning assembly (8) comprises a die closing shaft (9) arranged on the upper die (2) of the insole forming die, the die closing shaft (9) is in clamping connection with the lower die (1) of the insole forming die, and the lower die (1) of the insole forming die is provided with a positioning disc shaft (10) in clamping connection with the upper die (2) of the insole forming die.

3. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 2, characterized in that, The die closing shaft (9) and the positioning disc shaft (10) are staggered.

4. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile floor mats according to claim 3, characterized in that, The die closing shaft (9) comprises four die closing shafts (11) arranged on the upper die (2) of the insole forming die, the lower die (1) of the insole forming die is provided with four die closing through holes (12), the die closing through holes (12) are provided with sleeve shafts (13) in sleeve connection, and the die closing shafts (11) are in clamping connection with the sleeve shafts (13).

5. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 4, characterized in that, The sleeve shaft (13) comprises a sleeve shaft ring (14) arranged in the die closing through hole (12), the sleeve shaft ring (14) has an arc transition ring face, and the die closing shaft (11) is in clamping connection with the sleeve shaft ring (14).

6. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 5, characterized in that, The positioning disc shaft (10) comprises four positioning discs (15) arranged on the lower die (1) of the insole forming die, the upper die (2) of the insole forming die is provided with four positioning grooves (16), and the positioning discs (15) are in clamping connection with the positioning grooves (16).

7. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 6, characterized in that, The positioning disc (15) is provided with a positioning plug rod (17) at the top, the positioning groove (16) is provided with a plug rod hole (18) communicated with the positioning groove (16), and the positioning plug rod (17) is in clamping connection with the plug rod hole (18).

8. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 7, characterized in that, The injection part (7) comprises an injection main hole (19) arranged in the upper die (2) of the insole forming die, and the injection main hole (19) is communicated with the forming cavity (5).

9. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 8, characterized in that, The buckle forming lower part (4) comprises a buckle hole forming shaft (20) arranged in the upper die (2) of the insole forming die.

10. The high-precision positioning mechanism for injection molding molds of three-dimensional automobile foot mats according to claim 9, characterized in that, The buckle forming upper part (6) comprises a buckle forming groove (21) arranged in the lower die (1) of the insole forming die.

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